{
  "ptid_time": "126_S_0709_2008-08-25",
  "img_path": "/data/qiuhui/data/adni/images/126_S_0709/2008-08-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 59,738 mm³, 27.1% above the reference mean. With a Z-score of 0.79 (78.4th percentile), this represents normal volume ; hippocampal volume measures 7,659 mm³, 9.9% above the reference mean. With a Z-score of 0.86 (80.4th percentile), this represents normal volume ; whole brain volume measures 1,032,470 mm³, 0.3% above the reference mean. With a Z-score of 0.04 (51.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,072 mm³, 2.6% above the reference mean. With a Z-score of 0.17 (56.7th percentile), this represents normal volume ; fusiform gyrus volume measures 16,519 mm³, 8.6% below the reference mean. With a Z-score of -0.74 (22.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,756 mm³, 2.1% below the reference mean. With a Z-score of -0.18 (42.7th percentile), this represents normal volume . ",
  "text_data": "Age is 85.8 years. Gender is Male. Education: 8 years. MMSE: 30.0. Logical Memory: 3.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges based on Z-scores and percentiles. The MMSE score of 30/30 indicates no cognitive impairment, and while APOE4 is a risk factor, there is no current evidence of neurodegeneration.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T12:39:41.792989"
}